The main purpose of printing anti-UV (ultraviolet) ink on the cover plate of the touch screen is to enhance the weather resistance of the cover plate, prolong its service life, and ensure the stability of the display effect and user experience. The following are the specific reasons:
1. Prevent material degradation caused by UV light
Material degradation: UV rays accelerate the oxidation and degradation of cover materials (e.g., glass, plastic), resulting in brittleness, discoloration, and even cracking.
The role of anti-UV ink: special additives in anti-UV ink can absorb or reflect UV rays and reduce their direct exposure to cover materials, thus slowing down material aging.
2. Maintain display effect and touch performance
Loss of light transmittance: Long-term UV irradiation will lead to loss of light transmittance of the cover material, affecting the clarity of the display.
Touch malfunction: Material aging may lead to hardening or deformation of the cover surface, affecting the sensitivity and accuracy of the touch sensor.
Role of anti-UV ink: By protecting the cover material, anti-UV ink indirectly maintains the display effect and touch performance of the touch screen.
3. Enhance product durability and reliability
Outdoor Environment Adaptability: For touch screen devices used outdoors (e.g. industrial control panels, automotive displays), anti-UV ink is an essential protective measure.
Long-term stability: anti-UV ink can ensure that the touch screen can still maintain stable performance after a long period of time, reducing the cost of maintenance and replacement due to material aging.
4. Compliance with industry standards and user needs
Industry standards: Many industries (such as automotive, medical, industrial) have strict requirements for the weather resistance of touch panels, and UV resistance is one of the important indicators.
User experience: Users expect touch panels to provide consistent performance in a variety of environments, and UV-resistant inks help fulfill this need.
5. Technical characteristics of UV-resistant inks
High weatherability: UV-resistant inks usually have excellent resistance to light, heat and chemicals.
Compatibility: Modern UV-resistant inks can be compatible with conductive coatings and hardened coatings for touch panels without affecting the touch function and surface hardness.
Application Scenarios
Outdoor equipment: such as self-service terminals, intelligent bus stops, outdoor advertising machines, etc.
Industrial equipment: such as industrial touch screen, human-machine interface (HMI), etc.
Automotive field: such as in-vehicle display, center control touch screen, etc.
Summarize
Touch screen cover printing anti-UV ink is to cope with the damage of ultraviolet rays on the material, to ensure the long-term stability and reliability of the touch screen in a variety of environments. With the development of technology, the performance of anti-UV ink is constantly improving, and has become an indispensable part of touch screen manufacturing.